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通过动三轴液化试验,研究了尾粉砂在等压固结和偏压固结下的一些力学特性,分析了动应变ε_d,固结压力σ_(3c),固结应力比E_d对动模量E_d的影响,得到了阻尼比与动应变的关系,为该尾矿库二次扩容设计提供了相关的力学特性依据。
Some dynamic characteristics of tailings sand under constant pressure consolidation and bias consolidation are studied by dynamic triaxial liquefaction test. The effects of dynamic strain ε_d, consolidation pressure σ_ (3c), consolidation stress ratio E_d on dynamic model The relationship between the damping ratio and the dynamic strain is obtained, which provides the basis for the relevant mechanical characteristics for the second expansion design of the tailings dam.